On 03/22/2010 12:29 PM, Jan Kiszka wrote:
A 16-bit TSS is only 44 bytes long. So make sure to test for the correct
size on task switch.
This should be stable material as well. I can provide a patch that
applies on .32 and .33, or what will be the procedure?
I'd like to drop the Cc: stable and maintain stable queues explicitly
(in kvm-updates/2.6.3[23]). I'll fast-forward these to current -stable,
please send patches against them. These branches will be autotested
before submission, a step that is missing in the current scheme of things.
- if (!next_tss_desc.p || desc_limit_scaled(&next_tss_desc)< 0x67) {
+ desc_limit = desc_limit_scaled(&next_tss_desc);
+ if (!next_tss_desc.p ||
+ ((desc_limit< 0x67&& (next_tss_desc.type& 8)) ||
+ desc_limit< 0x2c)) {
A 44-byte TSS has a limit of 43 (just like a 4GB segment has a limit of
0xffffffff), so there is an off-by-one here.
--
error compiling committee.c: too many arguments to function
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